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Electric motor monitor

  • US 5,726,911 A
  • Filed: 08/22/1996
  • Issued: 03/10/1998
  • Est. Priority Date: 08/22/1996
  • Status: Expired due to Term
First Claim
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1. A monitor that attaches to an ac electric motor, said monitor comprising:

  • a structural enclosure;

    an engagement surface formed on said enclosure;

    means for attaching said enclosure to the motor so that said engagement surface is adjacent the motor;

    a power source disposed in said enclosure for supplying dc electrical power to the monitor;

    sensors disposed in said enclosure for sensing a plurality of sensed parameters of the motor and producing a plurality of sensor signals corresponding to the sensed parameters;

    a signal processor disposed in said enclosure for receiving and processing the sensor signals to produce operating parameters of the motor based on the sensed parameters;

    means for storing the operating parameters, said stored operating parameters corresponding to the operation history of the motor; and

    means for outputting at least the stored operation history of the motor.

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